Phase change heat absorption temperature control reactor

Abstract

The invention discloses a phase change heat absorption temperature control reactor. The phase change heat absorption temperature control reactor comprises a pressure bearing shell and a catalyst frame arranged in the pressure bearing shell and a heat removing tube bundle, wherein the heat removing tube bundle comprises a water intake tube, a water exhaust tube, a lower circular tube, a plurality of heat exchange water tubes, an upper circular tube, a water branch tube and an air collecting bag, wherein the water intake tube is communicated with the lower circular tube; the lower circular tube is arranged on the bottom of the pressure bearing shell; the upper circular tube is positioned above the lower circular tube; the plurality of heat exchange water tubes are sequentially connected between the upper circular tube and the lower circular tube in parallel; the water branch tube is communicated with the air collecting bag and the upper circular tube respectively; the water exhaust tube and the gas collecting bag are communicated; the plurality of heat exchange water tubes are positioned in the catalyst frame; the catalyst frame, the heat removing tube bundle and the pressure bearing shell are separated, so that overhauling, catalyst self-unloading and catalyst filling are convenient; a heat removing water tube is buried into a bed layer of the catalyst, so that the reaction heat in the bed layer of the catalyst can be removed timely, and the phenomena of original conversion, synthesis and sintering of a hydrogenation catalyst are prevented.

Description

technical field [0001] The invention relates to a fixed-bed catalytic reactor, in particular to a phase-change endothermic temperature-controlled reactor. Background technique [0002] The CO shift reactor is a widely used reactor in the chemical industry. During this period, people have made many improvements to the shift reactor, from the original full axial to full radial, and achieved good results in the resistance of the catalyst bed. effect, but the catalyst bed is still an adiabatic reaction. The catalyst bed is divided into several beds, and indirect heat exchange or water cooling is adopted between each bed. This kind of indirect heat exchange recovery transformation system has the disadvantages of low thermal energy grade, low recovery efficiency of sensible heat and latent heat, easy overheating of the catalyst, simultaneous transformation and side reactions such as methanation, etc. [0003] Coal-to-ethylene glycol carbonylation reactor currently uses a ф25X2 tu...

AI Technical Summary

Problems solved by technology

[0006] The Fischer-Tropsch synthesis reaction of coal-to-oil and coal-to-paraffin has not yet operated a large-scale device, and some small-scale Fischer-Tropsch synthesis reactors in operation are also tubular reactors, and Fe (or Co) series catalysts are packed in ф76X4 In the tube, there are still defects such as uneven gas distribution, overheating, carbon deposition, low yield of long-carbon paraffins, high resistance, equipment leakage, and difficulty in large-scale expansion.

Images